Kate Middleton: Duchess wears stunning formal green dress at Buckingham Palace

KATE MIDDLETON, 37, continued to cement her role as future queen this evening as she helped Queen Elizabeth entertain leaders from around the world, including President Donald Trump, in a stunning formal green dress.

Kate Middleton ‘showing how it should be done’ says expert

Kate Middleton is currently representing the Cambridge household, as Prince William is in Kuwait on a royal tour. The Duchess wore a stunning formal green dress as she helped grandmother-in-law, Queen Elizabeth, to entertain great leaders from around the world as NATO leaders gather to mark the 70th anniversary of the alliance at a reception in Buckingham Palace, London.

The royal mum-of-three was pictured having a great time entertaining the NATO leaders and opted to wear a bright green ensemble for the occasion.

The Duchess of Cambridge's dress boasted a conservative high neckline and fell just bellow Kate’s knees.

The dress had long sleeves and two button cufflinks on each arm.

READ MORE: Melania Trump called ‘definitive First Lady’ unveiling decorations

Kate Middleton entertains NATO leaders in stunning green dress

Kate Middleton: Duchess entertains NATO leaders at Buckingham Palace in stunning green dress (Image: PA/REUTERS)

ate Middleton entertains NATO leaders in stunning green dress

Kate Middleton: Duchess wears stunning formal green dress at Buckingham Palace (Image: PA)

For the occasion, the Duchess chose to keep her accessories minimal, only opting to wear her gorgeous sapphire engagement ring and a pair of tear-drop-down diamond earrings.

Kate decided to wear her trademark chocolate coloured locks down in a soft curl that framed her face.

Prince William's wife opted for some glamorous makeup, sporting a smokey eye shadow, contoured and blushed cheeks and a matte nude tinted lip stick.

Many royal fans have taken to twitter to speculate where the Duchess’ choice of dress for the evening is from.

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One fan speculated: “Is that the Mulberry 'Peace and Love' dress? If so, what an appropriately named dress to wear to a gathering of world leaders!”

Whilst another added: “Hard to tell without seeing the dress but could be this L.K. Bennett dress?”

A third added: "I think it’s bespoke.”

As well as Kate, Prince Charles and the Duchess of Cornwall, the Earl of Wessex, the Princess Royal, the Duke and Duchess of Gloucester and Princess Alexandra were all in attendance tonight.

Another fashionable attendee of the NATO event was Melania Trump, who opted to wear a striking canary-yellow Valentino cape coat over and a pair of magenta coloured Christian Louboutin suede heels.

ate Middleton entertains NATO leaders in stunning green dress

Kate Middleton helped Queen Elizabeth entertain leaders from around the world (Image: PA)

First Lady, Melania Trump, was pictured with Donald Trump this evening arriving for tea in a gorgeous, attention-grabbing, yellow cape coat and killer magenta suede stilettos.

Melania and Donald were greeted at the door by Prince Charles and Camilla, Duchess of Cornwall, where they were seen embracing in a warm greeting.

Melania wore a striking yellow Valentino cape coat, retailing at £4,600, to keep warm from the cold London air.

The cape coat was a joyful canary-yellow and is described by Valentino as a “soft wool blend with a trace of cashmere to a sweeping silhouette.” The coat has been crafted into a long and graceful shape with extra material draping around the neck and over the shoulder, proving some extra warmth and protection from the chilly winter evening. The coat falls gracefully just above the First Ladies ankles

ate Middleton entertains NATO leaders in stunning green dress

Melania Trump: FLOTUS demands attention in Valentino coat and Christian Louboutin heels (Image: GETTY IMAGES)

The £4,600 cape seemed to be keeping a surprise as to what Melania was wearing underneath. However, from in between the slits of the cape, magenta coloured sleeves can be seen poking out meaning it is very likely that the First Lady will be wearing a chic dress in a striking magenta colour underneath.

Keeping in the theme of magenta, the former model chose to wear a pair of £495 suede Christian Louboutin heels in the same colour, boosting her model 5’11” height to well over six foot.

Previously, Kate Middleton put on quite the show in an Alexander McQueen black and nude lace dress for the Royal Variety Performance last month.

Kate was accompanied by Prince William to the event and both looked as if they had stepped out of a James Bond film.

Kate’s beautiful Alexander McQueen gown was embellished with intricate detail and the floor-length style flowed to the ground.

At the time, the royal teamed her outfit with some fabulous black heels and carried a coordinating clutch bag, and added sparkly statement earrings by Erdem.

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